/*
 * @(#)WindingRule.java	1.13 98/06/29
 *
 * Copyright 1998 by Sun Microsystems, Inc.,
 * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information
 * of Sun Microsystems, Inc. ("Confidential Information").  You
 * shall not disclose such Confidential Information and shall use
 * it only in accordance with the terms of the license agreement
 * you entered into with Sun.
 */

package demos.Paths;

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.AffineTransform;
import java.awt.geom.GeneralPath;
import J2DCanvas;


/**
 * Rectangles filled to illustrate the GenerPath winding rule, determining
 * the interior of a path.
 */
public class WindingRule extends J2DCanvas {


    public WindingRule() {
	setBackground(Color.white);
    }


    public void drawDemo(Graphics2D g2) {

	g2.translate(w/3, h/6);

	GeneralPath p = new GeneralPath(GeneralPath.WIND_NON_ZERO);

	p.moveTo(0.0f, 0.0f);
	p.lineTo(w/4, 0.0f);
	p.lineTo(w/4, h/4);
	p.lineTo(0.0f, h/4);
	p.closePath();

	p.moveTo(w/16, h/18);
	p.lineTo(w/4+w/16, h/18);
	p.lineTo(w/4+w/16, h/4+h/18);
	p.lineTo(w/16, h/4+h/18);
	p.closePath();

	g2.setColor(Color.lightGray);
	g2.fill(p);
	g2.setColor(Color.black);
	g2.draw(p);
	g2.drawString("NON_ZERO rule", 0, -5);

	g2.translate(0.0f, h/2);

	p.setWindingRule(GeneralPath.WIND_EVEN_ODD);
	g2.setColor(Color.lightGray);
	g2.fill(p);
	g2.setColor(Color.black);
	g2.draw(p);
	g2.drawString("EVEN_ODD rule", 0, -5);
	g2.setTransform(new AffineTransform());
    }


    public static void main(String s[]) {
	WindowListener l = new WindowAdapter() {
	    public void windowClosing(WindowEvent e) {System.exit(0);}
	};
	Frame f = new Frame("Java2D Demo - WindingRule");
	f.addWindowListener(l);
	f.add("Center", new WindingRule());
	f.pack();
	f.setSize(new Dimension(400,300));
	f.show();
    }
}